on the streets of benghazi, libya, a different picture. hundreds of demonstrators rallied in support of america. they said the attack by on the consulate was carried out by a rogue group of militants. four americans were killed, including the ambassador to libya, chris stevens, a rising diplomat, seen here in a youtube video. >> my name is chris stevens. and i'm the new u.s. ambassador to libya. >> he risked his life to stop a tyrant. and gave his life to build a better libya. >> reporter: also killed, sean smith, an information specialist. >> we stand in gratitude for their service. i want to assure you, we will bring their killers to justice. >> reporter: a terror group affiliated with al qaeda has claimed responsibility for the well-coordinated attack with libya. it was timed to the 9/11 anniversary, and may not have been linked to the film that sparked protests in cairo and other cities. president obama said what should be a shift in u.s. relations with egypt, saying in a tv interview, that the u.s. does not consider the current egypti